
//兼容ie8------placehold不显示的问题
$(function () {
  if (!('placeholder' in document.createElement('input'))) {
    $('input[placeholder],textarea[placeholder]').each(function () {
      var that = $(this),
        text = that.attr('placeholder');
      if (that.val() === "") {
        that.val(text).addClass('placeholder');
      }
      that.focus(function () {
        if (that.val() === text) {
          that.val("").removeClass('placeholder');
        }
      })
        .blur(function () {
          if (that.val() === "") {
            that.val(text).addClass('placeholder');
          }
        })
        .closest('form').submit(function () {
          if (that.val() === text) {
            that.val('');
          }
        });
    });
  }
});
window.onscroll = function (e) {
  $('.fixright')[$(document).scrollTop() > 200 ? 'show' : 'hide']()
}